Chondrichthyes - Hexanchiformes

Full reference: C. J. Underwood and D. J. Ward. 2004. Neoselachian sharks and rays from the British Bathonian (Middle Jurassic). Palaeontology 47(3):447-501

Parent taxon: Hexanchiformes according to C. J. Underwood 2006

Sister taxa: Chlamydoselachidae, Eonotidanus, Hexanchidae, Pachyhexanchus, Paraheptranchias, Paranotidanus, Thrinax, Welcommia, Weltonia

Subtaxa: Pseudonotidanus

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Ecology: nektonic carnivore